I own a 640 lc4 2005 and it´s the cadillac of all ENDURO´s, it handles like a 250cc and it will get you up the mountain leaving your buddy´s way behind.... highway use,a bit of a vibrator,but, if you can get passed that,it handle´s ashphalt as well providing you´ve got the ´´right shoes´´ cruising speed I suggest 135 max the wind become´s a factor anyway, remember it´s an ENDURO,you can´t have it all...any faster, you want a RACER... but you´ll be missing out on the great versatility of the LC4...your choice